/[CvsGraph]/cvsgraph/readconf.c
ViewVC logotype

Annotate of /cvsgraph/readconf.c

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph


Revision 1.8 - (hide annotations)
Tue Feb 11 10:43:44 2003 UTC (14 years, 10 months ago) by bertho
Branch: MAIN
Changes since 1.7: +5 -1 lines
File MIME type: text/plain
- Implement different HTML levels for imagemaps.
- Add new commandline option for HTML level
- Update docs
1 bertho 1.1 /*
2     * CvsGraph graphical representation generator of brances and revisions
3     * of a file in cvs/rcs.
4     *
5 bertho 1.3 * Copyright (C) 2001,2002 B. Stultiens
6 bertho 1.1 *
7     * This program is free software; you can redistribute it and/or modify
8     * it under the terms of the GNU General Public License as published by
9     * the Free Software Foundation; either version 2 of the License, or
10     * (at your option) any later version.
11     *
12     * This program is distributed in the hope that it will be useful,
13     * but WITHOUT ANY WARRANTY; without even the implied warranty of
14     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15     * GNU General Public License for more details.
16     *
17     * You should have received a copy of the GNU General Public License
18     * along with this program; if not, write to the Free Software
19     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20     */
21    
22     /*#define DEBUG 1*/
23    
24     #include <stdio.h>
25     #include <stdlib.h>
26     #include <string.h>
27     #include <ctype.h>
28     #include <assert.h>
29    
30     #include <gd.h>
31     #include <gdfontt.h>
32     #include <gdfonts.h>
33     #include <gdfontmb.h>
34     #include <gdfontl.h>
35     #include <gdfontg.h>
36    
37     #include "utils.h"
38     #include "cvsgraph.h"
39     #include "readconf.h"
40    
41     int line_number;
42    
43     typedef struct
44     {
45     char *keyword;
46     int type;
47     union {
48     void *v; /* join of other values */
49     int *i;
50     font_t *f;
51     char **s;
52     color_t *c;
53 bertho 1.2 double *d;
54 bertho 1.1 int val; /* FIXME: Oops, sizeof(int) must be sizeof(void *) */
55     } confref;
56     } keyword_t;
57    
58     typedef union {
59     keyword_t *kw;
60     int i;
61 bertho 1.2 double d;
62 bertho 1.1 char *str;
63     } YYSTYPE;
64    
65     static YYSTYPE yylval;
66    
67     static int nstacked_opts;
68     static char **stacked_opts;
69    
70     enum {
71     TYPE_dummy = 256,
72     TYPE_KEYWORD,
73     TYPE_NUMBER,
74     TYPE_VALUE,
75     TYPE_BOOLEAN,
76     TYPE_COLOR,
77     TYPE_FONT,
78 bertho 1.2 TYPE_STRING,
79     TYPE_DOUBLE
80 bertho 1.1 };
81    
82     static keyword_t keywords[] = {
83     { "branch_bgcolor", TYPE_COLOR, { &conf.branch_bgcolor } },
84     { "branch_bspace", TYPE_NUMBER, { &conf.branch_bspace } },
85     { "branch_color", TYPE_COLOR, { &conf.branch_color } },
86 bertho 1.2 { "branch_font", TYPE_FONT, { &conf.branch_font.gdfont } },
87     { "branch_ttfont", TYPE_STRING, { &conf.branch_font.ttfont } },
88     { "branch_ttsize", TYPE_DOUBLE, { &conf.branch_font.ttsize } },
89     { "branch_tag_color", TYPE_COLOR, { &conf.branch_tag_color } },
90     { "branch_tag_font", TYPE_FONT, { &conf.branch_tag_font.gdfont } },
91     { "branch_tag_ttfont", TYPE_STRING, { &conf.branch_tag_font.ttfont } },
92     { "branch_tag_ttsize", TYPE_DOUBLE, { &conf.branch_tag_font.ttsize } },
93 bertho 1.1 { "branch_lspace", TYPE_NUMBER, { &conf.branch_lspace } },
94     { "branch_rspace", TYPE_NUMBER, { &conf.branch_rspace } },
95     { "branch_tspace", TYPE_NUMBER, { &conf.branch_tspace } },
96     { "branch_connect", TYPE_NUMBER, { &conf.branch_connect } },
97     { "branch_margin", TYPE_NUMBER, { &conf.branch_margin } },
98     { "branch_dupbox", TYPE_BOOLEAN, { &conf.branch_dupbox } },
99     { "upside_down", TYPE_BOOLEAN, { &conf.upside_down } },
100 bertho 1.5 { "left_right", TYPE_BOOLEAN, { &conf.left_right } },
101 bertho 1.2 { "auto_stretch", TYPE_BOOLEAN, { &conf.auto_stretch } },
102 bertho 1.1 { "color_bg", TYPE_COLOR, { &conf.color_bg } },
103 bertho 1.2 { "transparent_bg", TYPE_BOOLEAN, { &conf.transparent_bg } },
104 bertho 1.1 { "cvsmodule", TYPE_STRING, { &conf.cvsmodule } },
105     { "cvsroot", TYPE_STRING, { &conf.cvsroot } },
106     { "date_format", TYPE_STRING, { &conf.date_format } },
107     { "box_shadow", TYPE_BOOLEAN, { &conf.box_shadow } },
108     { "strip_untagged", TYPE_BOOLEAN, { &conf.strip_untagged } },
109     { "strip_first_rev", TYPE_BOOLEAN, { &conf.strip_first_rev } },
110 bertho 1.2 { "anti_alias", TYPE_BOOLEAN, { &conf.anti_alias } },
111     { "use_ttf", TYPE_BOOLEAN, { &conf.use_ttf } },
112 bertho 1.4 { "parse_logs", TYPE_BOOLEAN, { &conf.parse_logs } },
113 bertho 1.8 { "html_level", TYPE_NUMBER, { &conf.html_level } },
114 bertho 1.3 { "thick_lines", TYPE_NUMBER, { &conf.thick_lines } },
115 bertho 1.1 { "rev_color", TYPE_COLOR, { &conf.rev_color } },
116     { "rev_bgcolor", TYPE_COLOR, { &conf.rev_bgcolor } },
117 bertho 1.2 { "rev_font", TYPE_FONT, { &conf.rev_font.gdfont } },
118     { "rev_ttfont", TYPE_STRING, { &conf.rev_font.ttfont } },
119     { "rev_ttsize", TYPE_DOUBLE, { &conf.rev_font.ttsize } },
120 bertho 1.1 { "rev_separator", TYPE_NUMBER, { &conf.rev_separator } },
121     { "rev_minline", TYPE_NUMBER, { &conf.rev_minline } },
122     { "rev_maxline", TYPE_NUMBER, { &conf.rev_maxline } },
123     { "rev_lspace", TYPE_NUMBER, { &conf.rev_lspace } },
124     { "rev_rspace", TYPE_NUMBER, { &conf.rev_rspace } },
125     { "rev_tspace", TYPE_NUMBER, { &conf.rev_tspace } },
126     { "rev_bspace", TYPE_NUMBER, { &conf.rev_bspace } },
127     { "rev_text", TYPE_STRING, { &conf.rev_text } },
128     { "rev_text_color", TYPE_COLOR, { &conf.rev_text_color } },
129 bertho 1.2 { "rev_text_font", TYPE_FONT, { &conf.rev_text_font.gdfont } },
130     { "rev_text_ttfont", TYPE_STRING, { &conf.rev_text_font.ttfont } },
131     { "rev_text_ttsize", TYPE_DOUBLE, { &conf.rev_text_font.ttsize } },
132 bertho 1.6 { "rev_maxtags", TYPE_NUMBER, { &conf.rev_maxtags } },
133 bertho 1.1 { "tag_color", TYPE_COLOR, { &conf.tag_color } },
134 bertho 1.2 { "tag_font", TYPE_FONT, { &conf.tag_font.gdfont } },
135     { "tag_ttfont", TYPE_STRING, { &conf.tag_font.ttfont } },
136     { "tag_ttsize", TYPE_DOUBLE, { &conf.tag_font.ttsize } },
137 bertho 1.1 { "title", TYPE_STRING, { &conf.title } },
138     { "title_x", TYPE_NUMBER, { &conf.title_x } },
139     { "title_y", TYPE_NUMBER, { &conf.title_y } },
140 bertho 1.2 { "title_font", TYPE_FONT, { &conf.title_font.gdfont } },
141     { "title_ttfont", TYPE_STRING, { &conf.title_font.ttfont } },
142     { "title_ttsize", TYPE_DOUBLE, { &conf.title_font.ttsize } },
143 bertho 1.1 { "title_align", TYPE_NUMBER, { &conf.title_align } },
144     { "title_color", TYPE_COLOR, { &conf.title_color } },
145     { "margin_top", TYPE_NUMBER, { &conf.margin_top } },
146     { "margin_bottom", TYPE_NUMBER, { &conf.margin_bottom } },
147     { "margin_left", TYPE_NUMBER, { &conf.margin_left } },
148     { "margin_right", TYPE_NUMBER, { &conf.margin_right } },
149     { "image_type", TYPE_NUMBER, { &conf.image_type } },
150     { "image_quality", TYPE_NUMBER, { &conf.image_quality } },
151     { "map_name", TYPE_STRING, { &conf.map_name } },
152     { "map_branch_href", TYPE_STRING, { &conf.map_branch_href } },
153     { "map_branch_alt", TYPE_STRING, { &conf.map_branch_alt } },
154     { "map_rev_href", TYPE_STRING, { &conf.map_rev_href } },
155     { "map_rev_alt", TYPE_STRING, { &conf.map_rev_alt } },
156     { "map_diff_href", TYPE_STRING, { &conf.map_diff_href } },
157     { "map_diff_alt", TYPE_STRING, { &conf.map_diff_alt } },
158     { "jpeg", TYPE_VALUE, { (void *)IMAGE_JPEG } },
159     { "png", TYPE_VALUE, { (void *)IMAGE_PNG } },
160     { "gif", TYPE_VALUE, { (void *)IMAGE_GIF } },
161     { "true", TYPE_VALUE, { (void *)1 } },
162     { "false", TYPE_VALUE, { (void *)0 } },
163 bertho 1.3 { "not", TYPE_VALUE, { (void *)-1 } },
164 bertho 1.1 { "left", TYPE_VALUE, { (void *)0 } },
165     { "center", TYPE_VALUE, { (void *)1 } },
166     { "right", TYPE_VALUE, { (void *)2 } },
167     { "tiny", TYPE_VALUE, { (void *)0 } },
168     { "small", TYPE_VALUE, { (void *)1 } },
169     { "medium", TYPE_VALUE, { (void *)2 } },
170     { "large", TYPE_VALUE, { (void *)3 } },
171     { "giant", TYPE_VALUE, { (void *)4 } },
172 bertho 1.8 { "HTML3", TYPE_VALUE, { (void *)1 } },
173     { "HTML4", TYPE_VALUE, { (void *)2 } },
174     { "XHTML", TYPE_VALUE, { (void *)3 } },
175 bertho 1.1 };
176    
177     #define NKEYWORDS (sizeof(keywords) / sizeof(keywords[0]))
178    
179     static int cmp_kw(const void *k1, const void *k2)
180     {
181     return strcmp(((keyword_t *)k1)->keyword, ((keyword_t *)k2)->keyword);
182     }
183    
184     /*
185     **************************************************************************
186     * Debug routines
187     **************************************************************************
188     */
189     #ifdef DEBUG
190     #define DEBUGSTREAM stdout
191     static void debug_pname(const char *n)
192     {
193     fprintf(DEBUGSTREAM, "%-16s: ", n);
194     }
195    
196     static void debug_pstring(const char *n, const char *a)
197     {
198     debug_pname(n);
199     if(!a)
200     fprintf(DEBUGSTREAM, "<not-set>\n");
201     else
202     {
203     fputc('\'', DEBUGSTREAM);
204     for(; *a; a++)
205     {
206     if(isprint(*a))
207     fputc(*a, DEBUGSTREAM);
208     else
209     {
210     fputc('\\', DEBUGSTREAM);
211     switch(*a)
212     {
213     case '\a': fputc('a', DEBUGSTREAM); break;
214     case '\b': fputc('b', DEBUGSTREAM); break;
215     case '\f': fputc('f', DEBUGSTREAM); break;
216     case '\n': fputc('n', DEBUGSTREAM); break;
217     case '\r': fputc('r', DEBUGSTREAM); break;
218     case '\t': fputc('t', DEBUGSTREAM); break;
219     case '\v': fputc('v', DEBUGSTREAM); break;
220     default:
221     fprintf(DEBUGSTREAM, "x%02x", (unsigned char)*a);
222     }
223     }
224     }
225     fprintf(DEBUGSTREAM, "'\n");
226     }
227     }
228    
229     static void debug_pbool(const char *n, int b)
230     {
231     debug_pname(n);
232     fprintf(DEBUGSTREAM, "%s\n", b ? "true" : "false");
233     }
234    
235     static void debug_pint(const char *n, int i)
236     {
237     debug_pname(n);
238     fprintf(DEBUGSTREAM, "%i\n", i);
239     }
240    
241 bertho 1.2 static void debug_pdouble(const char *n, double d)
242     {
243     debug_pname(n);
244     fprintf(DEBUGSTREAM, "%g\n", d);
245     }
246    
247     static void debug_pfont(const char *n, gdFontPtr f)
248 bertho 1.1 {
249     const char *s = "<Unknown font>";
250     debug_pname(n);
251     if(f == gdFontTiny)
252     s = "gdFontTiny";
253     else if(f == gdFontSmall)
254     s = "gdFontSmall";
255     else if(f == gdFontMediumBold)
256     s = "gdFontMediumBold";
257     else if(f == gdFontLarge)
258     s = "gdFontLarge";
259     else if(f == gdFontGiant)
260     s = "gdFontGiant";
261     fprintf(DEBUGSTREAM, "%s\n", s);
262     }
263    
264     static void debug_pcolor(const char *n, color_t *c)
265     {
266     debug_pname(n);
267     fprintf(DEBUGSTREAM, "#%02x%02x%02x\n", c->r, c->g, c->b);
268     }
269    
270     void dump_config(void)
271     {
272     debug_pstring("cvsroot", conf.cvsroot);
273     debug_pstring("cvsmodule", conf.cvsmodule);
274     debug_pstring("date_format", conf.date_format);
275    
276     debug_pcolor("color_bg", &conf.color_bg);
277     debug_pbool("box_shadow", conf.box_shadow);
278     debug_pbool("upside_down", conf.upside_down);
279 bertho 1.5 debug_pbool("left_right", conf.left_right);
280 bertho 1.1 debug_pbool("strip_untagged", conf.strip_untagged);
281     debug_pbool("strip_first_rev", conf.strip_first_rev);
282 bertho 1.3 debug_pbool("auto_stretch", conf.auto_stretch);
283     debug_pbool("anti_alias", conf.anti_alias);
284     debug_pbool("use_ttf", conf.use_ttf);
285     debug_pint("thick_lines", conf.thick_lines);
286 bertho 1.1
287 bertho 1.2 debug_pfont("tag_font", conf.tag_font.gdfont);
288     debug_pstring("tag_ttfont", conf.tag_font.ttfont);
289     debug_psouble("tag_ttsize", conf.tag_font.ttsize);
290 bertho 1.1 debug_pcolor("tag_color", &conf.tag_color);
291    
292 bertho 1.2 debug_pfont("rev_font", conf.rev_font.gdfont);
293     debug_pstring("rev_ttfont", conf.rev_font.ttfont);
294     debug_pdouble("rev_ttsize", conf.rev_font.ttsize);
295 bertho 1.1 debug_pcolor("rev_color", &conf.rev_color);
296     debug_pcolor("rev_bgcolor", &conf.rev_bgcolor);
297     debug_pint("rev_separator", conf.rev_separator);
298     debug_pint("rev_minline", conf.rev_minline);
299     debug_pint("rev_maxline", conf.rev_maxline);
300     debug_pint("rev_lspace", conf.rev_lspace);
301     debug_pint("rev_rspace", conf.rev_rspace);
302     debug_pint("rev_tspace", conf.rev_tspace);
303     debug_pint("rev_bspace", conf.rev_bspace);
304     debug_pstring("rev_text", conf.rev_text);
305     debug_pcolor("rev_text_color", &conf.rev_text_color);
306 bertho 1.2 debug_pfont("rev_text_font", conf.rev_text_font.gdfont);
307     debug_pstring("rev_text_ttfont", conf.rev_text_font.ttfont);
308     debug_pdouble("rev_text_ttsize", conf.rev_text_font.ttsize);
309    
310     debug_pfont("branch_font", conf.branch_font.gdfont);
311     debug_pstring("branch_ttfont", conf.branch_font.ttfont);
312     debug_pdouble("branch_ttsize", conf.branch_font.ttsize);
313 bertho 1.1 debug_pcolor("branch_color", &conf.branch_color);
314 bertho 1.2 debug_pfont("branch_tag_font", conf.branch_tag_font.gdfont);
315     debug_pstring("branch_tag_ttfont", conf.branch_tag_font.ttfont);
316     debug_pdouble("branch_tag_ttsize", conf.branch_tag_font.ttsize);
317     debug_pcolor("branch_tag_color", &conf.branch_tag_color);
318 bertho 1.1 debug_pcolor("branch_bgcolor", &conf.branch_bgcolor);
319     debug_pint("branch_lspace", conf.branch_lspace);
320     debug_pint("branch_rspace", conf.branch_rspace);
321     debug_pint("branch_tspace", conf.branch_tspace);
322     debug_pint("branch_bspace", conf.branch_bspace);
323     debug_pint("branch_connect", conf.branch_connect);
324     debug_pint("branch_margin", conf.branch_margin);
325     debug_pint("branch_dupbox", conf.branch_dupbox);
326    
327     debug_pstring("title", conf.title);
328     debug_pint("title_x", conf.title_x);
329     debug_pint("title_y", conf.title_y);
330 bertho 1.2 debug_pfont("title_font", conf.title_font.gdfont);
331     debug_pstring("title_ttfont", conf.title_font.ttfont);
332     debug_pdouble("title_ttsize", conf.title_font.ttsize);
333 bertho 1.1 debug_pint("title_align", conf.title_align);
334     debug_pcolor("title_color", &conf.title_color);
335    
336     debug_pint("margin_top", conf.margin_top);
337     debug_pint("margin_bottom", conf.margin_bottom);
338     debug_pint("margin_left", conf.margin_left);
339     debug_pint("margin_right", conf.margin_right);
340    
341     debug_pint("image_type", conf.image_type);
342     debug_pint("image_quality", conf.image_quality);
343    
344     debug_pstring("map_name", conf.map_name);
345     debug_pstring("map_branch_href", conf.map_branch_href);
346     debug_pstring("map_branch_alt", conf.map_branch_alt);
347     debug_pstring("map_rev_href", conf.map_rev_href);
348     debug_pstring("map_rev_alt", conf.map_rev_alt);
349     debug_pstring("map_diff_href", conf.map_diff_href);
350     debug_pstring("map_diff_alt", conf.map_diff_alt);
351    
352     debug_pstring("expand[0]", conf.expand[0]);
353     debug_pstring("expand[1]", conf.expand[1]);
354     debug_pstring("expand[2]", conf.expand[2]);
355     debug_pstring("expand[3]", conf.expand[3]);
356     debug_pstring("expand[4]", conf.expand[4]);
357     debug_pstring("expand[5]", conf.expand[5]);
358     debug_pstring("expand[6]", conf.expand[6]);
359     debug_pstring("expand[7]", conf.expand[7]);
360     debug_pstring("expand[8]", conf.expand[8]);
361     debug_pstring("expand[9]", conf.expand[9]);
362     }
363     #endif
364    
365     /*
366     **************************************************************************
367     * String collection routines
368     **************************************************************************
369     */
370     #define STRALLOCSIZE 128
371     static char *str;
372     static int nstr;
373     static int nastr;
374    
375     static void reset_str(void)
376     {
377     nstr = 0;
378     }
379    
380     static void add_str(int c)
381     {
382     if(nstr + 1 + 1 > nastr)
383     {
384     str = xrealloc(str, nastr+STRALLOCSIZE);
385     nastr += STRALLOCSIZE;
386     }
387     str[nstr++] = c;
388     }
389    
390     static char *get_str(void)
391     {
392     if(!str)
393     return xstrdup("");
394    
395     str[nstr] = '\0';
396     return xstrdup(str);
397     }
398    
399     /*
400     **************************************************************************
401     * Input routines
402     **************************************************************************
403     */
404     static char *buf = NULL;
405     static int bufsize = 0;
406     static int bufalloc = 0;
407     static int bufpos = 0;
408     static int bufunput = -1;
409     static FILE *buffp;
410    
411     static void set_input(FILE *fp, char *s)
412     {
413     assert((fp == NULL && s != NULL) || (fp != NULL && s == NULL));
414     buffp = fp;
415     bufsize = bufpos = 0;
416     if(s)
417     {
418     if(!buf)
419     {
420     bufalloc = 8192;
421     buf = xmalloc(bufalloc * sizeof(*buf));
422     }
423     bufsize = strlen(s);
424     assert(bufsize < bufalloc);
425     strcpy(buf, s);
426     }
427     }
428    
429     static int get_input(void)
430     {
431     if(bufunput != -1)
432     {
433     int c = bufunput;
434     bufunput = -1;
435     return c;
436     }
437    
438     if(bufpos < bufsize)
439     {
440     assert(buf != NULL);
441     retry_input:
442     return (int)((unsigned char)buf[bufpos++]);
443     }
444    
445     if(!buf)
446     {
447     bufalloc = 8192;
448     buf = xmalloc(bufalloc * sizeof(*buf));
449     bufsize = bufpos = 0;
450     }
451     if(buffp)
452     {
453     bufsize = fread(buf, 1, bufalloc, buffp);
454     bufpos = 0;
455     if(!bufsize)
456     return EOF;
457     goto retry_input;
458     }
459     return EOF;
460     }
461    
462     static void unget_input(int c)
463     {
464     bufunput = c;
465     }
466    
467     /*
468     **************************************************************************
469     * Lexical scanner
470     **************************************************************************
471     */
472     static int config_lex(void)
473     {
474     int ch;
475     while(1)
476     {
477     ch = get_input();
478     if(ch == '\n')
479     line_number++;
480    
481     if(isspace(ch))
482     continue;
483    
484     switch(ch)
485     {
486     case EOF:
487     case '=':
488     case ';':
489     return ch;
490    
491     case '#': /* Comment */
492     while((ch = get_input()) != '\n' && ch != EOF)
493     ;
494     if(ch != EOF)
495     unget_input(ch);
496     break;
497    
498     case '"':
499     reset_str();
500     while(1)
501     {
502     char c[4];
503     ch = get_input();
504     switch(ch)
505     {
506     case '\\': /* Start an escape sequence */
507     switch(ch = get_input())
508     {
509     default: /* This includes '\\', '"' and embedded newlines */
510     add_str(ch);
511     break;
512     case 'a': add_str('\a'); break;
513     case 'b': add_str('\b'); break;
514     case 'f': add_str('\f'); break;
515     case 'n': add_str('\n'); break;
516     case 'r': add_str('\r'); break;
517     case 't': add_str('\t'); break;
518     case 'v': add_str('\v'); break;
519     case 'x':
520     case 'X': /* Hex escape */
521     c[0] = get_input();
522     c[1] = get_input();
523     c[2] = '\0';
524 bertho 1.7 if(!isxdigit((int)(unsigned char)c[0]) || !isxdigit((int)(unsigned char)c[1]))
525 bertho 1.1 yyerror("Invalid hex escape");
526     add_str((int)strtol(c, NULL, 16));
527     break;
528     case '0':
529     case '1':
530     case '2': /* Octal escape */
531     c[0] = ch;
532     c[1] = c[2] = c[3] = '\0';
533     if((ch = get_input()) >= '0' && ch <= '7')
534     c[1] = ch;
535     else
536     unget_input(ch);
537     if((ch = get_input()) >= '0' && ch <= '7')
538     c[2] = ch;
539     else
540     unget_input(ch);
541     add_str((int)strtol(c, NULL, 8));
542     break;
543     case EOF:
544     yyerror("Unexpected EOF in escape");
545     break;
546     }
547     break;
548     case '"':
549     yylval.str = get_str();
550     return TYPE_STRING;
551     case '\n':
552     yyerror("Newline in string");
553     break;
554     case EOF:
555     yyerror("Unexpected EOF in string");
556     break;
557     default:
558     add_str(ch);
559     break;
560     }
561     }
562     break;
563    
564     default:
565     if(isalpha(ch) || ch == '_')
566     {
567     keyword_t skw;
568     keyword_t *kw;
569     /* Collect keyword */
570     reset_str();
571     add_str(ch);
572     while(1)
573     {
574     ch = get_input();
575 bertho 1.8 if(isalnum(ch) || ch == '_')
576 bertho 1.1 add_str(ch);
577     else
578     {
579     unget_input(ch);
580     break;
581     }
582     }
583     skw.keyword = get_str();
584     kw = bsearch(&skw, keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
585     if(!kw)
586     yyerror("Unknown keyword '%s'", skw.keyword);
587     xfree(skw.keyword);
588     if(kw->type == TYPE_VALUE)
589     {
590     yylval.i = kw->confref.val;
591     return TYPE_NUMBER;
592     }
593     yylval.kw = kw;
594     return TYPE_KEYWORD;
595     }
596     else if(isdigit(ch) || ch == '+' || ch == '-')
597     {
598     char *s;
599     char *eptr;
600 bertho 1.2 int type = TYPE_NUMBER;
601 bertho 1.1 /* Collect number */
602     reset_str();
603     add_str(ch);
604     while(1)
605     {
606     ch = get_input();
607 bertho 1.2 if(isxdigit(ch) || ch == 'x' || ch == 'X' || ch == '.') /* Not exact, but close enough */
608 bertho 1.1 add_str(ch);
609     else
610     {
611     unget_input(ch);
612     break;
613     }
614 bertho 1.2 if(ch == '.')
615     type = TYPE_DOUBLE;
616 bertho 1.1 }
617     s = get_str();
618 bertho 1.2 if(type == TYPE_DOUBLE)
619     {
620     yylval.d = strtod(s, &eptr);
621     if(*eptr)
622     yyerror("Invalid floating point number");
623     }
624     else
625     {
626     yylval.i = strtol(s, &eptr, 0);
627     if(*eptr)
628     yyerror("Invalid number");
629     }
630 bertho 1.1 xfree(s);
631 bertho 1.2 return type;
632 bertho 1.1 }
633     else
634     yyerror("Unmatched text '%c' (0x%02x)", isprint(ch) ? ch : ' ', ch);
635     break;
636     }
637     }
638     }
639    
640     static void set_color(color_t *c, char *s)
641     {
642     char *cptr;
643     if(*s != '#' || strlen(s) != 7)
644     {
645     colorerror:
646     yyerror("Invalid color value");
647     }
648     c->b = strtol(s+5, &cptr, 16);
649     if(*cptr)
650     goto colorerror;
651     s[5] = '\0';
652     c->g = strtol(s+3, &cptr, 16);
653     if(*cptr)
654     goto colorerror;
655     s[3] = '\0';
656     c->r = strtol(s+1, &cptr, 16);
657     if(*cptr)
658     goto colorerror;
659     }
660    
661     static gdFontPtr get_font(int id)
662     {
663     switch(id)
664     {
665     case 0: return gdFontTiny;
666     case 1: return gdFontSmall;
667     default:
668     case 2: return gdFontMediumBold;
669     case 3: return gdFontLarge;
670     case 4: return gdFontGiant;
671     }
672     }
673    
674     /*
675     **************************************************************************
676     * The config parser
677     * Grammar:
678     * file : <Empty>
679     * | lines
680     * ;
681     *
682     * lines : line
683     * | lines line
684     * ;
685     *
686     * line : <keyword> '=' <value> ';'
687     * | ';'
688     * ;
689     **************************************************************************
690     */
691     static void config_parse(void)
692     {
693     int state = 0;
694     int token;
695     int t;
696     keyword_t *kw = NULL;
697    
698     while(1)
699     {
700     token = config_lex();
701     if(token == EOF)
702     {
703     if(state)
704     yyerror("Unexpected EOF");
705     break;
706     }
707    
708     switch(state)
709     {
710     case 0:
711     if(token == TYPE_KEYWORD)
712     {
713     kw = yylval.kw;
714     state = 1;
715     }
716     else if(token != ';')
717     yyerror("Keyword expected");
718     break;
719     case 1:
720     if(token != '=')
721     yyerror("'=' expected");
722     state = 2;
723     break;
724     case 2:
725     if(kw->type == TYPE_FONT || kw->type == TYPE_BOOLEAN)
726     t = TYPE_NUMBER;
727     else if(kw->type == TYPE_COLOR)
728     t = TYPE_STRING;
729     else
730     t = kw->type;
731 bertho 1.2
732     if(token == TYPE_NUMBER && kw->type == TYPE_DOUBLE)
733     {
734     /* Auto promote numbers to doubles if required */
735     yylval.d = (double)yylval.i;
736     token = TYPE_DOUBLE;
737     }
738    
739 bertho 1.1 if(token != t)
740     {
741     char *e;
742     switch(kw->type)
743     {
744     case TYPE_STRING: e = "String"; break;
745     case TYPE_NUMBER: e = "Number"; break;
746     case TYPE_COLOR: e = "Color"; break;
747     case TYPE_FONT: e = "Font"; break;
748     case TYPE_BOOLEAN: e = "Boolean"; break;
749 bertho 1.2 case TYPE_DOUBLE: e = "Double"; break;
750 bertho 1.1 default: e = "Internal error: Unknown type"; break;
751     }
752     yyerror("%s expected", e);
753     }
754     #ifdef DEBUG
755     printf("processing: '%s'\n", kw->keyword);
756     #endif
757     switch(kw->type)
758     {
759     case TYPE_STRING:
760     *kw->confref.s = yylval.str;
761     break;
762     case TYPE_NUMBER:
763     *kw->confref.i = yylval.i;
764     break;
765     case TYPE_BOOLEAN:
766 bertho 1.3 if(yylval.i == -1)
767     *kw->confref.i = !*kw->confref.i;
768     else
769     *kw->confref.i = yylval.i != 0;
770 bertho 1.1 break;
771     case TYPE_COLOR:
772     set_color(kw->confref.c, yylval.str);
773     break;
774     case TYPE_FONT:
775 bertho 1.2 kw->confref.f->gdfont = get_font(yylval.i);
776     break;
777     case TYPE_DOUBLE:
778     *kw->confref.d = yylval.d;
779 bertho 1.1 break;
780     default:
781     yyerror("Internal error: Unknown type passed %d", kw->type);
782     break;
783     }
784     state = 3;
785     break;
786     case 3:
787     if(token != ';')
788     yyerror("';' expected");
789     state = 0;
790     break;
791     default:
792     yyerror("Internal error: invalid state %d", state);
793     break;
794     }
795     }
796     }
797    
798     /*
799     **************************************************************************
800     * Configuration
801     **************************************************************************
802     */
803     void stack_option(const char *opt)
804     {
805     stacked_opts = xrealloc(stacked_opts, sizeof(*stacked_opts) * (nstacked_opts + 1));
806     stacked_opts[nstacked_opts] = xmalloc(strlen(opt) + 2);
807     strcpy(stacked_opts[nstacked_opts], opt);
808     strcat(stacked_opts[nstacked_opts], ";");
809     nstacked_opts++;
810     #ifdef DEBUG
811     printf("stacking option: '%s'\n", stacked_opts[nstacked_opts-1]);
812     #endif
813     }
814    
815     void read_config(const char *path)
816     {
817     FILE *fp;
818    
819     /* Make sure we have them sorted for bsearch */
820     qsort(keywords, NKEYWORDS, sizeof(keywords[0]), cmp_kw);
821    
822     if(path)
823     {
824     if((fp = fopen(path, "r")) != NULL)
825     input_file = path;
826     }
827     else
828     {
829     if((fp = fopen("./" CONFFILENAME, "r")) == NULL)
830     {
831     if((fp = fopen(ETCDIR "/" CONFFILENAME, "r")) != NULL)
832     input_file = ETCDIR "/" CONFFILENAME;
833     }
834     else
835     input_file = "./" CONFFILENAME;
836     }
837    
838     if(fp)
839     {
840     line_number = 1;
841     set_input(fp, NULL);
842     config_parse();
843     fclose(fp);
844     input_file = NULL;
845     }
846    
847     if(nstacked_opts)
848     {
849     int i;
850     for(i = 0; i < nstacked_opts; i++)
851     {
852     line_number = 0;
853     set_input(NULL, stacked_opts[i]);
854     input_file = stacked_opts[i];
855     #ifdef DEBUG
856     printf("parsing stacked option: '%s'\n", stacked_opts[i]);
857     #endif
858     config_parse();
859     }
860     input_file = NULL;
861     }
862     #ifdef DEBUG
863     dump_config();
864     #endif
865     }
866    

  ViewVC Help
Powered by ViewVC 1.1.0 with CvsGraph 1.7.0